Apparatus for covering wire with fibrous material



' 2 sheets sheet 1.

(No Model.)

J. BUGKNER. APPARATUS FOR COVERING WIRE WITH FIBROUS MATERIAL.

' No. 483,043. Petented Sept. 20, 1892.

FIG

mus PETERS co., PHOTO-H1710. wnsmun'mu, n. c4

(No Model.) 2 Shegts-Sheet 2.

J. BUGKNER. APPARATUS FOR COVERING WIRE WIT-H FIBROUS MATERIAL.

No. 483,043. Patented Sept. 20; 1892.

: cfl wezzfarx I /W w UNITED STATES PATENT OFFICE;

JAMES BUCKNER, OF BOSTON, MASSACHUSETTS.

APPARATUS FOR COVERING WIRE WITH FIBROUS MATERIAL.

SPECIFICATION forming part of Letters Patent No. 483,043, dated September 20, 1892.

7 Application filed September 14, 1891. Serial No. 405,604. (No model.)

To aZZ whom it may concern.-

Be it known that I, JAMES BUOKNER, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for Govering WVire with Fibrous Material, of which the following is a specification.

This invention relates to machines for winding fibrous insulating material-such as silk or cotton threadupon a wire used to conduct electricity; and it has for its object to provide a simple and efficient machine adapted to wind said insulating material in such manner as to form a smooth and effective coating free from cracks or openings to expose the wire.

To this end the invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of my improved winding or wire-covering machine. Fig. 2 represents a front elevation of the same. Fig. 3 represents a perspective view of a portion of the machine, and Figs. 4 and 5 represent edge views of the rolls mounted on the flier.

The same letters and numerals of reference indicate the same parts in all of the figures.

In the drawings, Ct represents the supporting-frame, which may be of any suitable form.

1) represents a tubular spindle which is journaled in hearings to on a bracket afiixed to the supporting-frame.

0 represents a flier, which is composed of heads 2 3 and rods 4, connecting said heads. The lower head 2 is affixed to the spindle in any suitable way, such as by a set-screw 5, entering a hub or collar 6 on said head. The rods 4. are rigidly affixed to the head 2; but the head 3 is preferably adapted to slide up and down on the upper portions of said rods and on the upper portion of the spindle b, the latter projecting through the center of said head, as shown in Fig. 3.

8 and 9 represent grooved rolls supported by studs on standards 10 10, affixed to the head 3. Said rolls are located at opposite sides of a wire (1, passing through the spindle b, and their office is to support the wire close to the point where the thread is wound'upon it and prevent the wire from being bent or twisted by the strainexerted on it by the thread; also, to press the thread wound on the wire cl closely and smoothly upon the periphery of the wire, said rolls being revolved about the wire by the rotation of the flier, as hereinafter described.

7 7 represent guides for the thread or fibrous material 6, used to cover the wire, said guides being here shown as tubes arranged diagonally and affixed to the head 3, their upper ends being arranged so that thread can pass from either onto the wire 01 at a point close to the rolls 8 9 and just above the same.

12 represents a thread-flattening device arranged to spread the fibers of the thread so that they will lie in a flat condition on the wire, as shown in Fig. 3. Said device is here shown as a slender vertical rod affixed to the head 3 and standing between the guide 7 and the wire (1.

tirepresent grooved guide-rolls mounted on a bracket c", affixed to the supportingframe, said guide-rolls being arranged to grasp and guide the wire at a point close to. the rolls 8 9.

jrepresents a tension roll or wheel journaled in a bracket j on the supporting-frame, said wheel having a narrow slitin its periphery, through which the wire passes, the slit being so narrow that its sides bind on the wire and exert friction thereon. The brackets t" j are preferably adjustable on a rod (1 attached to the frame a, and are secured to said rod by set-screws a a The spindle and flier are rotated by a belt m, running from a driving-pulley (not shown) to a pulley 13 on the spindle.

14 represents a worm affixed to the spindle and meshing with a worm-gear 15 on a shaft 16, journaled in a bracket on the frame a. Said shaft has a pinion 17, meshing with a gear 18 on a shaft 19, journaled in another bracket on the supporting-frame.

20 represents a wire-feeding roll affixed to the shaft 19 and rotated from the spindle by the described gearing.

21 represents a pressure-roll journaled in bearings on an arm 22,which is pivoted at 24: to the supporting-frame and adjusted by a screw 23 so as to exert any desired pressure on the feed-roll.

Operation: The wire d is passed through head 2 or on a collar 25, resting thereon, the

head 3 being removed to permit the application of the spool to the spindle and replaced to press a spring 26 down upon the head of the spool, said spring preventing the too free rotation of the spool upon the spindle, so that when the flier stops the spool ,will not continue to rotate and unwind the thread. From the spool the thread passes through the guide 1 7 to the wire, as shown in Figs. 1 and 3. The rotary motion of the flier winds the thread about the wire, and the endwise movement imparted to the wire by the feed-roll causes the thread to be wound helically on the wire and form a continuous covering. The spreadng device 12 spreads the thread and converts it into a flat strip, so that it lies smoothly on the wire. The grooved rolls 8 9, revolving about the wire and pressing against the thread wound thereon, co-operate with the rolls 2' 2' 1n supporting and preventing the bending or twisting of the wire and also smooth and press the thread covering and make the same smooth and compact. The covered Wire may be wound upon a reel or otherwise disposed of as fast as delivered by the feed-roll. I prefer to make the groove in the r0118 V-shaped, as shown in Fig. 5, one side of the groove being oblique to the axis of the roll and the other side substantially at a right angle thereto. The flattened thread passes through this groove to the wire, the described form of the i groove being preferred because it prevents i the thread from losing its flat form and gives the thread such an angle as to prevent its convolutions from overlapping each other on the j 3 feed-roll journaled in hearings on the frame,

wire.

I have shown two thread-guides 7, and in some cases may supply threads to the wire In general, however, but one guide will be used.

through both guides at the same time.

t t 15 represent glass tubes placed upon the rods 4 4 4, the object of said tubes being to preventthe thread which passes partly around one of said rods on its way from the spool to the thread-guide from sticking and becoming twisted by frictional contact with the rod.

The glass tubes present smooth surfaces on which the thread can slip with the minimum of friction.

I claim- I 1. The combination of a rotary tubular spindle, a flier attached thereto and provided at its upper end with a pair of grooved rolls standing at opposite sides of the path of a wire passing through said spindle, the groove of one roll having one side substantially at a right angleto the axis of the roll and the other side oblique thereto, a guide arranged to deliver thread or fibrous material to the wire at a point just above said rolls, and means for feeding the wire between said rolls and through the spindle, as set forth.

2. The combination of a rotary tubular spindle, a flier attached thereto and provided at its upper end with a pair of grooved rolls standing at opposite sides of the path of a wire passing through said spindle, the groove of one roll having one side substantially at a right angle to the axis of the roll and the other side oblique thereto, a guide arranged to deliver thread or fibrous material to the wire at a point just above said rolls, a thread-flattening rod extending across the space between the end of the guide and the rolls,and means for feeding the wire between said rolls and through the spindle, as set forth.

3. The combination of a rotary tubular spindle adapted to support a spool placed thereon, a flier composed of two heads, one of which is aflixed to the spindle and the other removably carried thereby, the two heads being connected by a plurality of rods, glass tubes on said rods, and means for guiding thread from a spool to a wire passing through said spindle, said glass tubes preventing the sticking of the thread passing from a spool on the spindle to the wire, as set forth.

4. The combination of the supportingframe, the tubular'spindle journaled in bearings on said frame, the flier attached to said spindle and provided at its upper end with rolls located at opposite sides of the path of a wire passing through said spindle and with a guide arranged to deliver thread to the Wire above said rolls, the wire-guiding rolls supported by a fixed bracket on said frame, the tension-roll located above said guide-rolls, the

the worm attached to the spindle, the gearing imparting motion from the worm to the feedroll, and the adjustable pressure-roll bearing on the feed-roll, as set forth.

5. The combination of the spindle, the flier attached thereto and composed of the lower head 2, affixed to the spindle, a plurality of rods 4, aflixed to said head, and the head 3, movable on said spindle and rods, and the spool-controlling spring interposed between said movable head and a spool placed on the spindle, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 9th day of September, A. D. 1891.

JAMES BUOKNER. Witnesses:

O. F. BROWN, A. D. HARRISON. 

